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Temperature Dependence of Fluorescence Spectra in Some Common Polymers

Nepal, Suman
http://orcid.org/0000-0002-0768-0438
http://rave.ohiolink.edu/etdc/view?acc_num=akron1502107649096441

Abstract Details

2017, Master of Science, University of Akron, Physics.
Fluorescence, the emission of photons with longer wavelengths, is one of the fascinating phenomena occurring in nature. Its study has major impact on knowing the structural and dynamic properties of matter. In this thesis, the fluorescence emission spectra of some common polymers are measured at a different temperature. The measurements are done at 77 K, 100 K, 150 K, 200 K, 250 K and 300 K. The fluorescence quantum yield decreased as the cryogenic temperature of the polymer sample is increased. An effort is made to study how the temperature affects the fluorescence measurements in polymer samples. The fitting parameter values obtained from the fitted curves of the emission spectra is used to analyze temperature dependency. The results show the effect of temperature on the intensity of the fluorescence peak and there is no spectral shift observed in the emission spectra except for Polystyrene (PS). The effect of temperature in fluorescence intensity is visible because at a higher temperature, the non-radiative processes is dominant than radiative processes.
Sasa Dordevic, Dr. (Advisor)
Alper Buldum, Dr. (Committee Member)
Ben Yu-Kuang Hu, Dr. (Committee Member)
87 p.
Physics
Temperature effect in fluorescence emission spectra

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Citations

  • Nepal, S. (2017). Temperature Dependence of Fluorescence Spectra in Some Common Polymers [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1502107649096441

    APA Style (7th edition)

  • Nepal, Suman. Temperature Dependence of Fluorescence Spectra in Some Common Polymers. 2017. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1502107649096441.

    MLA Style (8th edition)

  • Nepal, Suman. "Temperature Dependence of Fluorescence Spectra in Some Common Polymers." Master's thesis, University of Akron, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1502107649096441

    Chicago Manual of Style (17th edition)

akron1502107649096441
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This open access ETD is published by University of Akron and OhioLINK.